CN220571487U - Hawaii fruit opening device - Google Patents

Abstract

The utility model discloses a Hawaii fruit opening device, which relates to the technical field of nut processing equipment and comprises a feeding component, a pushing component, a cutting component and a control component; the feeding component comprises an outer barrel, a feeding port and a discharging port; the pushing component comprises a storage pipe, a first pushing piece and a pressurizing rod; a plurality of groups of cutting grooves are formed in the storage pipe, and baffle plates are symmetrically arranged on the end heads of the storage pipe; the cutting assembly comprises a first driving piece, a guide rail, a sliding piece, a second driving piece and a cutting piece; the control assembly includes a controller; the second driving piece drives the cutting piece to cut the outer wall of the macadamia nut, and the first driving piece drives the sliding piece to do circular motion on the guide rail, so that the cutting piece does circular motion on the outer wall of the macadamia nut, an opening is cut along the outer wall of the macadamia nut, a longer opening can be cut on the outer wall of the macadamia nut, and the shell of the macadamia nut can be opened when the macadamia nut is eaten in later period.

Description

Hawaii fruit opening device

Technical Field

The utility model relates to the technical field of nut processing equipment, in particular to a Hawaii nut opening device.

Background

The shell of hawaii is relatively hard, and an opening is usually cut in the shell of hawaii before eating, so that the shell is broken when eating.

The utility model patent number CN215958199U discloses a high-efficiency Hawaii fruit opening device, which comprises a conveying belt, wherein a tray for containing Hawaii fruits is arranged on the conveying belt, hemispherical wrapping rear grooves are fixedly arranged on the lateral parts of the tray and the conveying belt, which are opposite to the conveying direction, and cutting slits for enabling circular saw blades of a cutting machine to vertically enter and cut are arranged on the tops of the wrapping rear grooves; during cutting, the rotary cutting direction of the circular saw blade is opposite to the conveying direction of the upper section belt body of the conveying belt, and the rotary cutting direction of the circular saw blade cuts back from front to back along the opening of the wrapped rear groove towards the cutting seam, so that the wrapped rear groove can be used for semi-wrapping and blocking hawaii fruits during cutting, and the hawaii fruits cannot fall out. The basin-shaped tray is favorable for placing and positioning the hawaii fruits, and is not easy to roll out during horizontal conveying. The T-shaped frame body can swing to adjust the angle so as to change the cutting depth. The cut hawaii fruits fall off from the front end of the conveying belt; in the patent, when the macadamia nut is cut, the position of the circular saw blade is fixed after adjustment, the macadamia nut moves along a straight line through the conveyor belt, the length of an opening of the circular saw blade at the cutting position of the macadamia nut is limited by the cutting depth of the circular saw blade, and under the condition that fruits inside the macadamia nut are not damaged, the length of the opening of the circular saw blade cut on the macadamia nut after cutting is short, so that the shell of the macadamia nut is not beneficial to being opened in later eating; if the cutting depth of the circular saw blade is increased, the length of the opening can be increased, but the circular saw blade may damage fruits of hawaii fruit.

Disclosure of Invention

The utility model mainly aims to provide a macadamia nut opening device which is used for solving the problems that the cutting opening is short when the cutting depth is shallow in the cutting process of the traditional macadamia nut opening device, and the macadamia nut shell is not easy to open when eating.

To achieve the above object, the present utility model provides a hawaii fruit opening device comprising:

the feeding assembly comprises an outer barrel, a feeding port and a discharging port, wherein the feeding port and the discharging port are arranged on the outer barrel; the feeding holes and the discharging holes are staggered in the vertical direction;

the pushing assembly comprises a storage tube arranged in the outer cylinder in a sliding manner, a first pushing piece arranged in the outer cylinder, and a pressurizing rod movably arranged in the storage tube; the first pushing part penetrates through the storage pipe in a sliding manner and is connected with the pressurizing rod; a plurality of groups of cutting grooves are formed in the outer wall of the storage pipe at intervals from top to bottom, and baffle plates are symmetrically arranged on the end, close to the feed inlet, of the storage pipe;

the cutting assembly comprises a first driving piece and a guide rail which are arranged in the outer cylinder, a sliding piece arranged on the guide rail, a second driving piece arranged on the sliding piece and a cutting piece arranged on the second driving piece; the second driving piece rotates under the action of external force so as to drive the cutting piece to do circular motion relative to the second driving piece; the first driving piece drives the sliding piece to do circular motion along the guide rail under the action of external force so as to enable the cutting piece to do circular motion relative to the first driving piece;

the control assembly comprises a controller arranged on the outer cylinder; the controller is respectively and electrically connected with the first pushing piece, the first driving piece and the second driving piece; the control piece is used for controlling the moving distance of the first pushing piece so that the storage pipe is located at different positions in the outer cylinder, and further the storage pipe is controlled to be communicated with or sealed by the feed inlet or the discharge outlet respectively.

As a further improvement of the utility model, the feeding port is arranged on the upper end surface of the outer cylinder, and the axis of the feeding port coincides with the axis of the outer cylinder; the discharge port is arranged on the lower end face of the outer cylinder, and the axial center of the discharge port is offset towards the direction away from the guide rail relative to the axial center of the outer cylinder.

As a further improvement of the utility model, the inner wall of the outer cylinder, which is close to the upper end surface of the feed inlet, is provided with a first chute communicated with the feed inlet, and the inner wall of the outer cylinder, which is close to the lower end surface of the discharge outlet, is provided with a second chute communicated with the discharge outlet; the two ends of the storage pipe are respectively arranged in the first chute and the second chute in a sliding way.

As a further improvement of the utility model, a wedge-shaped material guide plate is arranged on the end of the pressurizing rod close to one end of the feeding hole; the circumference of the cutting groove is two thirds of the circumference of the storage pipe.

As a further development of the utility model, the first drive comprises a first servomotor; the output end of the first servo motor is provided with a first transmission gear; the sliding piece comprises a guide ring; the outer wall of the guide ring is provided with first transmission racks at intervals; the first drive rack is meshed with the first drive gear.

As a further improvement of the utility model, the second driving piece comprises a second servo motor, a second rotating shaft is arranged at the output end of the second servo motor, and the second servo motor is arranged on the guide ring; the cutting member comprises a cutting disc; the cutting discs are arranged at intervals, the cutting discs are connected with the second rotating shaft, and the positions of the cutting discs on the second rotating shaft correspond to the cutting grooves.

The beneficial effects of the utility model are as follows:

the first pushing piece is arranged to drive the storage pipe to be respectively communicated with the feed inlet and the discharge outlet, so that macadamia nuts can be conveniently poured into or discharged out of the storage pipe; the second driving piece drives the cutting piece to cut the outer wall of the macadamia nut, and the first driving piece drives the sliding piece to do circular motion on the guide rail, so that the cutting piece does circular motion on the outer wall of the macadamia nut, an opening is cut along the outer wall of the macadamia nut, a longer opening can be cut on the outer wall of the macadamia nut, and the shell of the macadamia nut can be opened when the macadamia nut is eaten in later period.

Drawings

Fig. 1 is a schematic overall structure of a hawaii fruit opening device according to the present utility model;

fig. 2 is a schematic diagram of the internal structure of the outer barrel of the hawaii fruit opening device according to the present utility model;

fig. 3 is a schematic view of a material storage tube of a hawaii fruit opening device according to the present utility model;

fig. 4 is a schematic diagram of a cutter structure of a hawaii fruit opening device according to the present utility model;

fig. 5 is a schematic view showing an internal structure of a slider of a hawaii fruit opening device according to the present utility model;

reference numerals illustrate:

1. an outer cylinder; 101. a first chute; 102. a second chute; 2. a feed inlet; 3. a discharge port; 4. a storage tube; 5. a first pusher shoe; 6. a pressurizing rod; 601. a material guide plate; 7. cutting a groove; 8. a baffle; 9. a first driving member; 901. a first servo motor; 902. a first transmission gear; 10. a guide rail; 11. a slider; 1101. a guide ring; 1102. a first drive rack; 1103. a groove; 1104. a first rotating shaft; 1105. a roll shaft; 12. a second driving member; 1201. a second servo motor; 1202. a second rotating shaft; 1203. an external thread; 13. a cutting member; 1301. a cutting disc; 1302. a threaded hole; 1303. a limiting hole; 1304. a limit rod; 1305. a cross bar; 1306. connecting sleeves; 14. a controller; 15. and (5) a feeding hopper.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the described embodiments are merely some, but not all embodiments of the present utility model. Embodiments and features of embodiments in this application may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In an embodiment, referring to fig. 1, a hawaii fruit opening device of the present utility model includes a feeding component, a pushing component, a cutting component, and a control component.

The feeding assembly comprises an outer barrel 1, a feeding port 2 and a discharging port 3 which are arranged on the outer barrel 1; the feeding ports 2 and the discharging ports 3 are staggered in the vertical direction; the pushing component comprises a storage tube 4 arranged in the outer barrel 1 in a sliding manner, a first pushing piece 5 arranged in the outer barrel 1, and a pressurizing rod 6 movably arranged in the storage tube 4; the first pushing part 5 penetrates through the storage pipe 4 in a sliding way and is connected with the pressurizing rod 6; a plurality of groups of cutting grooves 7 are formed in the outer wall of the storage pipe 4 at intervals from top to bottom, and baffle plates 8 are symmetrically arranged on the end, close to the feed inlet 2, of the storage pipe 4; the cutting assembly comprises a first driving piece 9 and a guide rail 10 which are arranged in the outer cylinder 1, a sliding piece 11 arranged on the guide rail 10, a second driving piece 12 arranged on the sliding piece 11, and a cutting piece 13 arranged on the second driving piece 12; the second driving piece 12 rotates under the action of external force so as to drive the cutting piece 13 to do circular motion relative to the second driving piece 12; the first driving piece 9 drives the sliding piece 11 to do circular motion along the guide rail 10 under the action of external force so as to enable the cutting piece 13 to do circular motion relative to the first driving piece 9; the control assembly comprises a controller 14 arranged on the outer cylinder 1, the controller 14 is respectively and electrically connected with the first pushing member 5, the first driving member 9 and the second driving member 12, and the control member is used for controlling the moving distance of the first pushing member 5 so that the material storage pipe 4 is positioned at different positions in the outer cylinder 1 and further controlling the material storage pipe 4 to be respectively communicated with or sealed at the material inlet 2 or the material outlet 3.

Preferably, the outer cylinder 1 is a cylinder having a hollow interior.

Specifically, referring to fig. 2, the feed inlet 2 is disposed on the upper end surface of the outer cylinder 1, and the axis of the feed inlet 2 coincides with the axis of the outer cylinder 1; the discharge port 3 is arranged on the lower end face of the outer cylinder 1, and the axial center of the discharge port 3 is offset to the axial center of the outer cylinder 1 in a direction away from the guide rail 10.

Preferably, the feeding inlet 2 is provided with a feeding hopper 15, and the discharging outlet 3 is provided with a discharging pipe.

Further, referring to fig. 2, a first chute 101 communicated with the feed inlet 2 is arranged on the inner wall of the upper end surface of the outer barrel 1 adjacent to the feed inlet 2, and a second chute 102 communicated with the discharge outlet 3 is arranged on the inner wall of the lower end surface of the outer barrel 1 adjacent to the discharge outlet 3; both ends of the storage tube 4 are respectively slidably arranged in the first chute 101 and the second chute 102.

Preferably, the outer wall of the storage tube 4 is in clearance fit with the first chute 101 and the second chute 102 respectively.

In the above arrangement, when the first pushing member 5 pushes the storage tube 4 to move in the first chute 101 and the second chute 102, by controlling the moving distance of the first pushing member 5, two ends of the storage tube 4 can be controlled to be respectively and independently communicated with the feed inlet 2 or the discharge outlet 3, so as to introduce hawaii fruits into the storage tube 4 through the feed inlet 2 or discharge hawaii fruits out of the storage tube 4 through the discharge outlet 3; or the two ends of the storage pipe 4 are controlled to be respectively attached to the bottoms of the first chute 101 and the second chute 102, so that the two ends of the storage pipe 4 are closed to cut and slot hawaii fruits in the discharge pipe.

Further, referring to fig. 3, a wedge-shaped guide plate 601 is provided on the end of the pressurizing rod 6 adjacent to one end of the feed port 2; the circumference of the cutting groove 7 is two-thirds of the circumference of the storage tube 4.

Preferably, the first pushing member 5 adopts a hydraulic cylinder, and a hydraulic rod is arranged on the hydraulic cylinder and is connected with the pressurizing rod 6.

In the above arrangement, the controller 14 controls the oil inlet direction and the oil inlet duration of the hydraulic cylinder, so as to control the moving direction and the moving distance of the hydraulic rod, when the hydraulic rod moves towards the guide rail 10, the initial position of the storage pipe 4 is communicated with the discharge port 3, when the storage pipe 4 moves, the discharge pipe is firstly communicated with the feed port 2, the controller 14 controls the residence duration 5s-10s of the storage pipe 4, the macadamia nut in the feed hopper 15 enters the storage pipe 4, after the time arrives, the controller 14 continuously controls the hydraulic rod to move towards the guide rail 10 to be attached to the side edge of the second chute 102, the pressurizing rod 6 pushes the macadamia nut to be attached to the inner wall of the storage pipe 4, so as to fix the macadamia nut, at the moment, the cutting piece 13 is positioned at the side of the storage pipe 4, the controller 14 simultaneously controls the first driving piece 9 and the second driving piece 12 to work, the cutting piece 13 rotates, and the cutting piece 13 opens to the macadamia nut in the storage pipe 4 from the cutting groove 7, and the first driving piece 9 drives the second driving piece 12 and the cutting piece 13 to move along the outer wall of the macadamia nut to make a longer circular opening on the outer wall of the macadamia nut; the controller 14 controls the length of time that the storage tube 4 is attached to the side edge of the second chute 102 to be 3s-5s, after the time arrives, the controller 14 controls the oil inlet path of the hydraulic cylinder to be opposite, so that the hydraulic rod drives the storage tube 4 to move towards the discharge port 3, after the storage tube 4 is communicated with the discharge port 3, cut hawaii fruits are discharged from the discharge port 3, and in the process that the storage tube 4 moves towards or away from the discharge port 3, the baffle 8 on the storage tube 4 seals the discharge port 3, so that hawaii fruits are prevented from falling into the outer barrel 1.

Further, referring to fig. 2, the first driving member 9 includes a first servo motor 901, and a first transmission gear 902 is provided at an output end of the first servo motor 901; the sliding member 11 includes a guide ring 1101, and first driving racks 1102 are spaced apart from an outer wall of the guide ring 1101, and the first driving racks 1102 are engaged with the first driving gear 902.

Preferably, the guide rail 10 and the guide ring 1101 are both annular, and the guide ring 1101 is in clearance fit with the guide rail 10.

Preferably, referring to fig. 5, the inner wall of the guide ring 1101 is symmetrically provided with a groove 1103, a first rotating shaft 1104 is arranged in the groove 1103, a roller shaft 1105 is arranged on the first rotating shaft 1104, and one side of the roller shaft 1105 away from the groove 1103 exceeds the inner wall of the guide ring 1101.

In the above arrangement, the first servo motor 901 works to drive the first transmission gear 902 to rotate, and the first transmission gear 902 is meshed with the first transmission rack 1102, so as to drive the guide ring 1101 to slide on the guide rail 10, and the set roller 1105 can reduce the friction between the guide rail 10 and the guide ring 1101, so that the guide ring 1101 can slide on the guide rail 10.

Further, referring to fig. 4, the second driving member 12 includes a second servo motor 1201, a second rotating shaft 1202 is provided on an output end of the second servo motor 1201, and the second servo motor 1201 is provided on the guide ring 1101; the cutting member 13 includes cutting discs 1301, the cutting discs 1301 are arranged in a plurality of groups at intervals, the cutting discs 1301 are connected with the second rotating shaft 1202, and the positions of the cutting discs 1301 on the second rotating shaft 1202 correspond to the cutting grooves 7.

Preferably, the second rotating shaft 1202 is connected to the output end of the second servo motor 1201 through a coupling.

Preferably, the edge of the cutting tray 1301 exceeds the position of the second chute 102 adjacent to the side wall of the cutting tray 1301, such that the cutting tray 1301 is positioned within the cutting slot 7 when the storage tube 4 is in contact with the side wall of the second chute 102 adjacent to the cutting tray 1301.

Preferably, an external thread 1203 is arranged on the outer wall of the second rotating shaft 1202, a threaded hole 1302 is arranged in the center of the cutting disc 1301, a limiting hole 1303 is further arranged at a position, close to the threaded hole 1302, of the cutting disc 1301, a limiting rod 1304 is arranged in the limiting hole 1303, a cross rod 1305 is arranged at the end of the limiting rod 1304, a connecting sleeve 1306 is arranged on the cross rod 1305, and the end of the second rotating shaft 1202 is located in the connecting sleeve 1306.

In the above arrangement, the cutting disc 1301 is connected with the second rotating shaft 1202 through the threads, the limiting rods 1304 are sequentially inserted into the limiting holes 1303 on different cutting discs 1301, the connecting sleeve 1306 is connected with the second rotating shaft 1202, and the positions of the cutting discs 1301 on the second rotating shaft 1202 are fixed under the action of the threads and the limiting rods 1304.

The controller 14, the first servo motor 901, the second servo motor 1201, the coupling, the hydraulic cylinder, and the hydraulic rod are all of the existing structure, and in this embodiment, the structure is not improved, and only the installation positions of the controller 14, the first servo motor 901, the second servo motor 1201, the coupling, the hydraulic cylinder, and the hydraulic rod are limited.

In this embodiment, hawaii fruits with openings to be cut are placed in the feed hopper 15, the controller 14 controls the oil inlet direction of the hydraulic cylinder, so that the hydraulic rod moves towards the guide rail 10, thereby driving the storage tube 4 to be communicated with the feed inlet 2, the hawaii fruits enter the storage tube 4 along the feed inlet 2, after the preset residence time on the controller 14 is reached, the hydraulic rod continues to push the storage tube 4 to move towards the guide rail 10 and be attached to the side wall of the second sliding groove 102 adjacent to the guide rail 10, the storage tube 4 stays therein, the position of the storage tube 4 is limited by the second sliding groove 102, and the pressure rod 6 extrudes the hawaii fruits, so that the hawaii fruits in the storage tube 4 are fixed;

the power supply of the second servo motor 1201 is communicated with a main power supply, after the whole device is electrified, the second servo motor 1201 is electrified to work so as to drive the first rotating shaft 1104 and the cutting disc 1301 to rotate, the storage pipe 4 moves towards the guide rail 10 and the cutting disc 1301 enters the cutting groove 7 to cut hawaii fruits;

the first servo motor 901 is started when the storage tube 4 is attached to the side wall of the second chute 102, the starting time point can be preset through the controller 14, the first servo motor 901 works to drive the first transmission gear 902 to rotate, so that after the first transmission gear 902 is meshed with the first transmission rack 1102, the guide ring 1101 is driven to slide on the guide rail 10, the first servo motor 901 and the cutting disc 1301 do circular motion, the cutting disc 1301 do circular motion along the outer wall of the macadamia nut, and accordingly a long opening is cut in the outer wall of the macadamia nut.

Presetting a stay time length A when the storage tube 4 is attached to the side wall of the second chute 102 through the controller 14, presetting a working time length B of the first servo motor 901, wherein the working time length B of the first servo motor 901 is equal to the stay time length A of the storage tube 4, and rotating directions of the first servo motor 901 in two adjacent works are opposite; after cutting the opening on the outer wall of the macadamia nut, the cutting time length A is reached, the controller 14 controls the oil way oil inlet direction of the hydraulic cylinder, so that the hydraulic rod drives the storage pipe 4 to move towards the discharge port 3, after the storage pipe 4 is communicated with the discharge port 3, the cut macadamia nut discharge port 3 is discharged, the storage pipe 4 stays at the storage port for the time length C, after the cutting time length C is reached, the controller 14 controls the hydraulic rod to move towards the guide rail 10, the storage pipe 4 is driven to be communicated with the feed port 2, the storage pipe 4 stays at the feed port 2 for the time length D, and after the cutting time length D is reached, the hydraulic rod drives the storage pipe 4 to move towards the guide rail 10, so that the macadamia nut is cut; the length of time is preset through the controller 14, so that the length of time for the hydraulic rod to move is controlled, and the storage tube 4 is respectively attached to the side walls of the discharge hole 3, the feed inlet 2 and the second chute 102.

By controlling the distance between the side wall of the second sliding groove 102 adjacent to the guide rail 10 and the outer edge of the cutting disc 1301 adjacent to the storage tube 4, the cutting depth of the cutting disc 1301 on the outer wall of the macadamia nut is controlled, and the fruit can be prevented from being damaged greatly due to the fact that the opening is deeper when the opening is formed in the outer wall of the macadamia nut.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (6)

1. A hawaii fruit opening device, characterized by comprising:

the feeding assembly comprises an outer barrel (1), a feeding port (2) and a discharging port (3) which are arranged on the outer barrel (1); the feeding holes (2) and the discharging holes (3) are staggered in the vertical direction;

the pushing assembly comprises a storage tube (4) arranged in the outer tube (1) in a sliding manner, a first pushing piece (5) arranged in the outer tube (1) and a pressurizing rod (6) movably arranged in the storage tube (4); the first pushing piece (5) penetrates through the storage pipe (4) in a sliding mode and is connected with the pressurizing rod (6); a plurality of groups of cutting grooves (7) are formed in the outer wall of the storage pipe (4) at intervals from top to bottom, and baffle plates (8) are symmetrically arranged at the end, close to the feed inlet (2), of the storage pipe (4);

the cutting assembly comprises a first driving piece (9) and a guide rail (10) which are arranged in the outer cylinder (1), a sliding piece (11) arranged on the guide rail (10), a second driving piece (12) arranged on the sliding piece (11) and a cutting piece (13) arranged on the second driving piece (12); the second driving piece (12) rotates under the action of external force so as to drive the cutting piece (13) to do circular motion relative to the second driving piece (12); the first driving piece (9) drives the sliding piece (11) to do circular motion along the guide rail (10) under the action of external force so as to enable the cutting piece (13) to do circular motion relative to the first driving piece (9);

a control assembly comprising a controller (14) arranged on the outer cylinder (1); the controller (14) is respectively and electrically connected with the first pushing piece (5), the first driving piece (9) and the second driving piece (12); the control assembly is used for controlling the moving distance of the first pushing part (5) so that the storage pipe (4) is positioned at different positions in the outer cylinder (1), and further controlling the feed inlet (2) or the discharge outlet (3) of the storage pipe (4) to be communicated or closed respectively.

2. The hawaii fruit opening device according to claim 1, characterized in that: the feeding hole (2) is arranged on the upper end face of the outer cylinder (1), and the axis of the feeding hole (2) is coincident with the axis of the outer cylinder (1); the discharging hole (3) is arranged on the lower end face of the outer cylinder (1), and the axis of the discharging hole (3) is offset towards the direction away from the guide rail (10) relative to the axis of the outer cylinder (1).

3. The hawaii fruit opening device according to claim 2, characterized in that: the inner wall of the outer barrel (1) close to the upper end face of the feed inlet (2) is provided with a first chute (101) communicated with the feed inlet (2), and the inner wall of the outer barrel (1) close to the lower end face of the discharge outlet (3) is provided with a second chute (102) communicated with the discharge outlet (3); the two ends of the storage pipe (4) are respectively arranged in the first chute (101) and the second chute (102) in a sliding way.

4. A hawaii fruit opening device according to claim 3, characterized in that: a wedge-shaped material guide plate (601) is arranged at the end of the pressurizing rod (6) close to one end of the feeding hole (2); the circumference of the cutting groove (7) is two thirds of the circumference of the storage pipe (4).

5. The hawaii fruit opening device according to claim 4, characterized in that: the first driving piece (9) comprises a first servo motor (901); the output end of the first servo motor (901) is provided with a first transmission gear (902); the slider (11) comprises a guide ring (1101); the outer wall of the guide ring (1101) is provided with first transmission racks (1102) at intervals; the first drive rack (1102) is in engagement with the first drive gear (902).

6. The hawaii fruit opening device according to claim 5, characterized in that: the second driving piece (12) comprises a second servo motor (1201), a second rotating shaft (1202) is arranged at the output end of the second servo motor (1201), and the second servo motor (1201) is arranged on the guide ring (1101); the cutting member (13) comprises a cutting disc (1301); the cutting discs (1301) are arranged at intervals to form a plurality of groups, the cutting discs (1301) are connected with the second rotating shaft (1202), and the positions of the cutting discs (1301) on the second rotating shaft (1202) correspond to the cutting grooves (7).